Do we get punished for our parents sin

Firstly: The Islamic belief concerning human sin is: the individual bears the responsibility for his own sin; no one else should bear this burden for him, nor should he bear the burden for anyone else. Allah says (interpretation of the meaning): “And no bearer of burdens shall bear another’s burden…” [Faatir 35:18]. This refutes the idea of original sin. If the father commits a sin, what fault is that of his children and grandchildren? Why should they bear the burden of a sin that someone else committed? The Christian belief that the descendents should bear the sin of their father is the essence of injustice. How can any sane person say that the sin should be carried down the centuries by all of humanity, or that the children, grandchildren and subsequent descendants should be tainted because of their father’s sin?

Secondly, making mistakes is a part of human nature. Our Prophet (peace and blessings of Allaah be upon him) said, “Every son of Aadam is bound to commit sins…” (reported by al-Tirmidhi, 2423), but Allaah has not left man unable to do anything about the mistakes that he makes. He gives man the opportunity to repent, and so the hadeeth (words of the Prophet (peace and blessings of Allaah be upon him) quoted above concludes: “…and the best of those who commit sins are those who repent.” The mercy of Allaah is clear in the teachings of Islam, as Allaah calls His servants (interpretation of the meaning): “Say, ‘O My servants who have transgressed against themselves (by committing evil deeds and sins)! Despair not of the Mercy of Allaah, verily Allaah forgives all sins. Truly, He is Oft-Forgiving, Most Merciful.” [al-Zumar 39:53]